TY  - BOOK
ED  - Catapult
TI  - Microsoft MS DOS 6 Step By Step 
SN  - 1556155522
U1  - 005.4469 
PY  - 1993///
CY  - Redmond, Washington Dc : 
PB  - Microsoft Press, 
KW  - MS DOS Computer File
KW  - Operating Systems Computers
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/1-55615-552-2.pdf
ER  -